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<div id="overview"><a href="../../../../../../../../api/org/jboss/netty/handler/codec/http/multipart/AbstractMemoryHttpData.html">View Javadoc</a></div><pre>

<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> * Copyright 2012 The Netty Project</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> * The Netty Project licenses this file to you under the Apache License,</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_comment"> * version 2.0 (the "License"); you may not use this file except in compliance</em>
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_comment"> * with the License. You may obtain a copy of the License at:</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_comment"> *   <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT</em>
<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_comment"> * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the</em>
<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_comment"> * License for the specific language governing permissions and limitations</em>
<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_comment"> * under the License.</em>
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  <strong class="jxr_keyword">package</strong> org.jboss.netty.handler.codec.http.multipart;
<a class="jxr_linenumber" name="17" href="#17">17</a>  
<a class="jxr_linenumber" name="18" href="#18">18</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.buffer.ChannelBuffer;
<a class="jxr_linenumber" name="19" href="#19">19</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.buffer.ChannelBuffers;
<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpConstants;
<a class="jxr_linenumber" name="21" href="#21">21</a>  
<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> java.io.File;
<a class="jxr_linenumber" name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> java.io.FileInputStream;
<a class="jxr_linenumber" name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> java.io.FileOutputStream;
<a class="jxr_linenumber" name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> java.io.IOException;
<a class="jxr_linenumber" name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> java.io.InputStream;
<a class="jxr_linenumber" name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> java.nio.ByteBuffer;
<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> java.nio.channels.FileChannel;
<a class="jxr_linenumber" name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> java.nio.charset.Charset;
<a class="jxr_linenumber" name="30" href="#30">30</a>  
<a class="jxr_linenumber" name="31" href="#31">31</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="32" href="#32">32</a>  <em class="jxr_javadoccomment"> * Abstract Memory HttpData implementation</em>
<a class="jxr_linenumber" name="33" href="#33">33</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="34" href="#34">34</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../../org/jboss/netty/handler/codec/http/multipart/AbstractMemoryHttpData.html">AbstractMemoryHttpData</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../../../org/jboss/netty/handler/codec/http/multipart/AbstractHttpData.html">AbstractHttpData</a> {
<a class="jxr_linenumber" name="35" href="#35">35</a>  
<a class="jxr_linenumber" name="36" href="#36">36</a>      <strong class="jxr_keyword">private</strong> <a href="../../../../../../../org/jboss/netty/buffer/ChannelBuffer.html">ChannelBuffer</a> channelBuffer;
<a class="jxr_linenumber" name="37" href="#37">37</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> chunkPosition;
<a class="jxr_linenumber" name="38" href="#38">38</a>      <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">boolean</strong> isRenamed;
<a class="jxr_linenumber" name="39" href="#39">39</a>  
<a class="jxr_linenumber" name="40" href="#40">40</a>      <strong class="jxr_keyword">protected</strong> <a href="../../../../../../../org/jboss/netty/handler/codec/http/multipart/AbstractMemoryHttpData.html">AbstractMemoryHttpData</a>(String name, Charset charset, <strong class="jxr_keyword">long</strong> size) {
<a class="jxr_linenumber" name="41" href="#41">41</a>          <strong class="jxr_keyword">super</strong>(name, charset, size);
<a class="jxr_linenumber" name="42" href="#42">42</a>      }
<a class="jxr_linenumber" name="43" href="#43">43</a>  
<a class="jxr_linenumber" name="44" href="#44">44</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setContent(<a href="../../../../../../../org/jboss/netty/buffer/ChannelBuffer.html">ChannelBuffer</a> buffer) <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="45" href="#45">45</a>          <strong class="jxr_keyword">if</strong> (buffer == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="46" href="#46">46</a>              <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException(<span class="jxr_string">"buffer"</span>);
<a class="jxr_linenumber" name="47" href="#47">47</a>          }
<a class="jxr_linenumber" name="48" href="#48">48</a>          <strong class="jxr_keyword">long</strong> localsize = buffer.readableBytes();
<a class="jxr_linenumber" name="49" href="#49">49</a>          checkSize(localsize);
<a class="jxr_linenumber" name="50" href="#50">50</a>          <strong class="jxr_keyword">if</strong> (definedSize &gt; 0 &amp;&amp; definedSize &lt; localsize) {
<a class="jxr_linenumber" name="51" href="#51">51</a>              <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"Out of size: "</span> + localsize + <span class="jxr_string">" &gt; "</span> +
<a class="jxr_linenumber" name="52" href="#52">52</a>                      definedSize);
<a class="jxr_linenumber" name="53" href="#53">53</a>          }
<a class="jxr_linenumber" name="54" href="#54">54</a>          channelBuffer = buffer;
<a class="jxr_linenumber" name="55" href="#55">55</a>          size = localsize;
<a class="jxr_linenumber" name="56" href="#56">56</a>          completed = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="57" href="#57">57</a>      }
<a class="jxr_linenumber" name="58" href="#58">58</a>  
<a class="jxr_linenumber" name="59" href="#59">59</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setContent(InputStream inputStream) <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="60" href="#60">60</a>          <strong class="jxr_keyword">if</strong> (inputStream == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="61" href="#61">61</a>              <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException(<span class="jxr_string">"inputStream"</span>);
<a class="jxr_linenumber" name="62" href="#62">62</a>          }
<a class="jxr_linenumber" name="63" href="#63">63</a>          <a href="../../../../../../../org/jboss/netty/buffer/ChannelBuffer.html">ChannelBuffer</a> buffer = ChannelBuffers.dynamicBuffer();
<a class="jxr_linenumber" name="64" href="#64">64</a>          byte[] bytes = <strong class="jxr_keyword">new</strong> byte[4096 * 4];
<a class="jxr_linenumber" name="65" href="#65">65</a>          <strong class="jxr_keyword">int</strong> read = inputStream.read(bytes);
<a class="jxr_linenumber" name="66" href="#66">66</a>          <strong class="jxr_keyword">int</strong> written = 0;
<a class="jxr_linenumber" name="67" href="#67">67</a>          <strong class="jxr_keyword">while</strong> (read &gt; 0) {
<a class="jxr_linenumber" name="68" href="#68">68</a>              buffer.writeBytes(bytes, 0, read);
<a class="jxr_linenumber" name="69" href="#69">69</a>              written += read;
<a class="jxr_linenumber" name="70" href="#70">70</a>              checkSize(written);
<a class="jxr_linenumber" name="71" href="#71">71</a>              read = inputStream.read(bytes);
<a class="jxr_linenumber" name="72" href="#72">72</a>          }
<a class="jxr_linenumber" name="73" href="#73">73</a>          size = written;
<a class="jxr_linenumber" name="74" href="#74">74</a>          <strong class="jxr_keyword">if</strong> (definedSize &gt; 0 &amp;&amp; definedSize &lt; size) {
<a class="jxr_linenumber" name="75" href="#75">75</a>              <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"Out of size: "</span> + size + <span class="jxr_string">" &gt; "</span> + definedSize);
<a class="jxr_linenumber" name="76" href="#76">76</a>          }
<a class="jxr_linenumber" name="77" href="#77">77</a>          channelBuffer = buffer;
<a class="jxr_linenumber" name="78" href="#78">78</a>          completed = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="79" href="#79">79</a>      }
<a class="jxr_linenumber" name="80" href="#80">80</a>  
<a class="jxr_linenumber" name="81" href="#81">81</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addContent(<a href="../../../../../../../org/jboss/netty/buffer/ChannelBuffer.html">ChannelBuffer</a> buffer, <strong class="jxr_keyword">boolean</strong> last)
<a class="jxr_linenumber" name="82" href="#82">82</a>              <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="83" href="#83">83</a>          <strong class="jxr_keyword">if</strong> (buffer != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="84" href="#84">84</a>              <strong class="jxr_keyword">long</strong> localsize = buffer.readableBytes();
<a class="jxr_linenumber" name="85" href="#85">85</a>              checkSize(size + localsize);
<a class="jxr_linenumber" name="86" href="#86">86</a>              <strong class="jxr_keyword">if</strong> (definedSize &gt; 0 &amp;&amp; definedSize &lt; size + localsize) {
<a class="jxr_linenumber" name="87" href="#87">87</a>                  <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"Out of size: "</span> + (size + localsize) +
<a class="jxr_linenumber" name="88" href="#88">88</a>                          <span class="jxr_string">" &gt; "</span> + definedSize);
<a class="jxr_linenumber" name="89" href="#89">89</a>              }
<a class="jxr_linenumber" name="90" href="#90">90</a>              size += localsize;
<a class="jxr_linenumber" name="91" href="#91">91</a>              <strong class="jxr_keyword">if</strong> (channelBuffer == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="92" href="#92">92</a>                  channelBuffer = buffer;
<a class="jxr_linenumber" name="93" href="#93">93</a>              } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="94" href="#94">94</a>                  channelBuffer = ChannelBuffers.wrappedBuffer(
<a class="jxr_linenumber" name="95" href="#95">95</a>                          channelBuffer, buffer);
<a class="jxr_linenumber" name="96" href="#96">96</a>              }
<a class="jxr_linenumber" name="97" href="#97">97</a>          }
<a class="jxr_linenumber" name="98" href="#98">98</a>          <strong class="jxr_keyword">if</strong> (last) {
<a class="jxr_linenumber" name="99" href="#99">99</a>              completed = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="100" href="#100">100</a>         } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="101" href="#101">101</a>             <strong class="jxr_keyword">if</strong> (buffer == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="102" href="#102">102</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException(<span class="jxr_string">"buffer"</span>);
<a class="jxr_linenumber" name="103" href="#103">103</a>             }
<a class="jxr_linenumber" name="104" href="#104">104</a>         }
<a class="jxr_linenumber" name="105" href="#105">105</a>     }
<a class="jxr_linenumber" name="106" href="#106">106</a> 
<a class="jxr_linenumber" name="107" href="#107">107</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setContent(File file) <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="108" href="#108">108</a>         <strong class="jxr_keyword">if</strong> (file == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="109" href="#109">109</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException(<span class="jxr_string">"file"</span>);
<a class="jxr_linenumber" name="110" href="#110">110</a>         }
<a class="jxr_linenumber" name="111" href="#111">111</a>         <strong class="jxr_keyword">long</strong> newsize = file.length();
<a class="jxr_linenumber" name="112" href="#112">112</a>         <strong class="jxr_keyword">if</strong> (newsize &gt; Integer.MAX_VALUE) {
<a class="jxr_linenumber" name="113" href="#113">113</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(
<a class="jxr_linenumber" name="114" href="#114">114</a>                     <span class="jxr_string">"File too big to be loaded in memory"</span>);
<a class="jxr_linenumber" name="115" href="#115">115</a>         }
<a class="jxr_linenumber" name="116" href="#116">116</a>         checkSize(newsize);
<a class="jxr_linenumber" name="117" href="#117">117</a>         FileInputStream inputStream = <strong class="jxr_keyword">new</strong> FileInputStream(file);
<a class="jxr_linenumber" name="118" href="#118">118</a>         FileChannel fileChannel = inputStream.getChannel();
<a class="jxr_linenumber" name="119" href="#119">119</a>         byte[] array = <strong class="jxr_keyword">new</strong> byte[(<strong class="jxr_keyword">int</strong>) newsize];
<a class="jxr_linenumber" name="120" href="#120">120</a>         ByteBuffer byteBuffer = ByteBuffer.wrap(array);
<a class="jxr_linenumber" name="121" href="#121">121</a>         <strong class="jxr_keyword">int</strong> read = 0;
<a class="jxr_linenumber" name="122" href="#122">122</a>         <strong class="jxr_keyword">while</strong> (read &lt; newsize) {
<a class="jxr_linenumber" name="123" href="#123">123</a>             read += fileChannel.read(byteBuffer);
<a class="jxr_linenumber" name="124" href="#124">124</a>         }
<a class="jxr_linenumber" name="125" href="#125">125</a>         fileChannel.close();
<a class="jxr_linenumber" name="126" href="#126">126</a>         inputStream.close();
<a class="jxr_linenumber" name="127" href="#127">127</a>         byteBuffer.flip();
<a class="jxr_linenumber" name="128" href="#128">128</a>         channelBuffer = ChannelBuffers.wrappedBuffer(byteBuffer);
<a class="jxr_linenumber" name="129" href="#129">129</a>         size = newsize;
<a class="jxr_linenumber" name="130" href="#130">130</a>         completed = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="131" href="#131">131</a>     }
<a class="jxr_linenumber" name="132" href="#132">132</a> 
<a class="jxr_linenumber" name="133" href="#133">133</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> delete() {
<a class="jxr_linenumber" name="134" href="#134">134</a>         <em class="jxr_comment">// nothing to do</em>
<a class="jxr_linenumber" name="135" href="#135">135</a>     }
<a class="jxr_linenumber" name="136" href="#136">136</a> 
<a class="jxr_linenumber" name="137" href="#137">137</a>     <strong class="jxr_keyword">public</strong> byte[] get() {
<a class="jxr_linenumber" name="138" href="#138">138</a>         <strong class="jxr_keyword">if</strong> (channelBuffer == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="139" href="#139">139</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> byte[0];
<a class="jxr_linenumber" name="140" href="#140">140</a>         }
<a class="jxr_linenumber" name="141" href="#141">141</a>         byte[] array = <strong class="jxr_keyword">new</strong> byte[channelBuffer.readableBytes()];
<a class="jxr_linenumber" name="142" href="#142">142</a>         channelBuffer.getBytes(channelBuffer.readerIndex(), array);
<a class="jxr_linenumber" name="143" href="#143">143</a>         <strong class="jxr_keyword">return</strong> array;
<a class="jxr_linenumber" name="144" href="#144">144</a>     }
<a class="jxr_linenumber" name="145" href="#145">145</a> 
<a class="jxr_linenumber" name="146" href="#146">146</a>     <strong class="jxr_keyword">public</strong> String getString() {
<a class="jxr_linenumber" name="147" href="#147">147</a>         <strong class="jxr_keyword">return</strong> getString(HttpConstants.DEFAULT_CHARSET);
<a class="jxr_linenumber" name="148" href="#148">148</a>     }
<a class="jxr_linenumber" name="149" href="#149">149</a> 
<a class="jxr_linenumber" name="150" href="#150">150</a>     <strong class="jxr_keyword">public</strong> String getString(Charset encoding) {
<a class="jxr_linenumber" name="151" href="#151">151</a>         <strong class="jxr_keyword">if</strong> (channelBuffer == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="152" href="#152">152</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">""</span>;
<a class="jxr_linenumber" name="153" href="#153">153</a>         }
<a class="jxr_linenumber" name="154" href="#154">154</a>         <strong class="jxr_keyword">if</strong> (encoding == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="155" href="#155">155</a>             encoding = HttpConstants.DEFAULT_CHARSET;
<a class="jxr_linenumber" name="156" href="#156">156</a>         }
<a class="jxr_linenumber" name="157" href="#157">157</a>         <strong class="jxr_keyword">return</strong> channelBuffer.toString(encoding);
<a class="jxr_linenumber" name="158" href="#158">158</a>     }
<a class="jxr_linenumber" name="159" href="#159">159</a> 
<a class="jxr_linenumber" name="160" href="#160">160</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="161" href="#161">161</a> <em class="jxr_javadoccomment">     * Utility to go from a In Memory FileUpload</em>
<a class="jxr_linenumber" name="162" href="#162">162</a> <em class="jxr_javadoccomment">     * to a Disk (or another implementation) FileUpload</em>
<a class="jxr_linenumber" name="163" href="#163">163</a> <em class="jxr_javadoccomment">     * @return the attached ChannelBuffer containing the actual bytes</em>
<a class="jxr_linenumber" name="164" href="#164">164</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="165" href="#165">165</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../../org/jboss/netty/buffer/ChannelBuffer.html">ChannelBuffer</a> getChannelBuffer() {
<a class="jxr_linenumber" name="166" href="#166">166</a>         <strong class="jxr_keyword">return</strong> channelBuffer;
<a class="jxr_linenumber" name="167" href="#167">167</a>     }
<a class="jxr_linenumber" name="168" href="#168">168</a> 
<a class="jxr_linenumber" name="169" href="#169">169</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../../org/jboss/netty/buffer/ChannelBuffer.html">ChannelBuffer</a> getChunk(<strong class="jxr_keyword">int</strong> length) <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="170" href="#170">170</a>         <strong class="jxr_keyword">if</strong> (channelBuffer == <strong class="jxr_keyword">null</strong> || length == 0 || channelBuffer.readableBytes() == 0) {
<a class="jxr_linenumber" name="171" href="#171">171</a>             chunkPosition = 0;
<a class="jxr_linenumber" name="172" href="#172">172</a>             <strong class="jxr_keyword">return</strong> ChannelBuffers.EMPTY_BUFFER;
<a class="jxr_linenumber" name="173" href="#173">173</a>         }
<a class="jxr_linenumber" name="174" href="#174">174</a>         <strong class="jxr_keyword">int</strong> sizeLeft = channelBuffer.readableBytes() - chunkPosition;
<a class="jxr_linenumber" name="175" href="#175">175</a>         <strong class="jxr_keyword">if</strong> (sizeLeft == 0) {
<a class="jxr_linenumber" name="176" href="#176">176</a>             chunkPosition = 0;
<a class="jxr_linenumber" name="177" href="#177">177</a>             <strong class="jxr_keyword">return</strong> ChannelBuffers.EMPTY_BUFFER;
<a class="jxr_linenumber" name="178" href="#178">178</a>         }
<a class="jxr_linenumber" name="179" href="#179">179</a>         <strong class="jxr_keyword">int</strong> sliceLength = length;
<a class="jxr_linenumber" name="180" href="#180">180</a>         <strong class="jxr_keyword">if</strong> (sizeLeft &lt; length) {
<a class="jxr_linenumber" name="181" href="#181">181</a>             sliceLength = sizeLeft;
<a class="jxr_linenumber" name="182" href="#182">182</a>         }
<a class="jxr_linenumber" name="183" href="#183">183</a>         <a href="../../../../../../../org/jboss/netty/buffer/ChannelBuffer.html">ChannelBuffer</a> chunk = channelBuffer.slice(chunkPosition, sliceLength);
<a class="jxr_linenumber" name="184" href="#184">184</a>         chunkPosition += sliceLength;
<a class="jxr_linenumber" name="185" href="#185">185</a>         <strong class="jxr_keyword">return</strong> chunk;
<a class="jxr_linenumber" name="186" href="#186">186</a>     }
<a class="jxr_linenumber" name="187" href="#187">187</a> 
<a class="jxr_linenumber" name="188" href="#188">188</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isInMemory() {
<a class="jxr_linenumber" name="189" href="#189">189</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="190" href="#190">190</a>     }
<a class="jxr_linenumber" name="191" href="#191">191</a> 
<a class="jxr_linenumber" name="192" href="#192">192</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> renameTo(File dest) <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="193" href="#193">193</a>         <strong class="jxr_keyword">if</strong> (dest == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="194" href="#194">194</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException(<span class="jxr_string">"dest"</span>);
<a class="jxr_linenumber" name="195" href="#195">195</a>         }
<a class="jxr_linenumber" name="196" href="#196">196</a>         <strong class="jxr_keyword">if</strong> (channelBuffer == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="197" href="#197">197</a>             <em class="jxr_comment">// empty file</em>
<a class="jxr_linenumber" name="198" href="#198">198</a>             dest.createNewFile();
<a class="jxr_linenumber" name="199" href="#199">199</a>             isRenamed = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="200" href="#200">200</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="201" href="#201">201</a>         }
<a class="jxr_linenumber" name="202" href="#202">202</a>         <strong class="jxr_keyword">int</strong> length = channelBuffer.readableBytes();
<a class="jxr_linenumber" name="203" href="#203">203</a>         FileOutputStream outputStream = <strong class="jxr_keyword">new</strong> FileOutputStream(dest);
<a class="jxr_linenumber" name="204" href="#204">204</a>         FileChannel fileChannel = outputStream.getChannel();
<a class="jxr_linenumber" name="205" href="#205">205</a>         ByteBuffer byteBuffer = channelBuffer.toByteBuffer();
<a class="jxr_linenumber" name="206" href="#206">206</a>         <strong class="jxr_keyword">int</strong> written = 0;
<a class="jxr_linenumber" name="207" href="#207">207</a>         <strong class="jxr_keyword">while</strong> (written &lt; length) {
<a class="jxr_linenumber" name="208" href="#208">208</a>             written += fileChannel.write(byteBuffer);
<a class="jxr_linenumber" name="209" href="#209">209</a>         }
<a class="jxr_linenumber" name="210" href="#210">210</a>         fileChannel.force(false);
<a class="jxr_linenumber" name="211" href="#211">211</a>         fileChannel.close();
<a class="jxr_linenumber" name="212" href="#212">212</a>         outputStream.close();
<a class="jxr_linenumber" name="213" href="#213">213</a>         isRenamed = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="214" href="#214">214</a>         <strong class="jxr_keyword">return</strong> written == length;
<a class="jxr_linenumber" name="215" href="#215">215</a>     }
<a class="jxr_linenumber" name="216" href="#216">216</a> 
<a class="jxr_linenumber" name="217" href="#217">217</a>     <strong class="jxr_keyword">public</strong> File getFile() <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="218" href="#218">218</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"Not represented by a file"</span>);
<a class="jxr_linenumber" name="219" href="#219">219</a>     }
<a class="jxr_linenumber" name="220" href="#220">220</a> }
</pre>
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